5218816 has 20 divisors (see below), whose sum is σ = 10428462. Its totient is φ = 2609152.

The previous prime is 5218793. The next prime is 5218817. The reversal of 5218816 is 6188125.

It can be written as a sum of positive squares in only one way, i.e., 4000000 + 1218816 = 2000^2 + 1104^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5218817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4585 + ... + 5608.

Almost surely, 2^5218816 is an apocalyptic number.

It is an amenable number.

5218816 is a deficient number, since it is larger than the sum of its proper divisors (5209646).

5218816 is an equidigital number, since it uses as much as digits as its factorization.

5218816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10211 (or 10195 counting only the distinct ones).

The product of its digits is 3840, while the sum is 31.

The square root of 5218816 is about 2284.4728057038. The cubic root of 5218816 is about 173.4565330572.

The spelling of 5218816 in words is "five million, two hundred eighteen thousand, eight hundred sixteen".